Properties of the Number 56809

Fifty-Six Thousand Eight Hundred Nine

Basics

Value: 56808 → 56809 → 56810

Parity: odd

Prime: Yes

Previous Prime: 56807

Next Prime: 56813

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 56809

Divisors: 1, 56809

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101110111101001

Octal: 156751

Duodecimal: 28A61

Hexadecimal: dde9

Square: 3227262481

Square Root: 238.3463865889307

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primes that remain prime through 4 iterations of function f(x) = 2x + 5. A23304

Number of n-node rooted trees of height 6. A393

Primes A080478(n)² + A080478(n+1)². A139361

Number of primes less than 10ⁿ with digits in nondecreasing order. A345325

Triangle read by rows: T(n,k) = numerator of P(n, k) = 1 - n!/(n^k*(n-k)!). A89204

Primes p such that the maximal length of a nontrivial N(p)-Hensley sequence mod p is less than the value of A124882 for that prime, where N(p) is the least positive quadratic non-residue mod p. A261405

Numbers k such that 65^k - 64^k is prime. A62631

Numbers k such that k, k+1 and k+2 are products of two primes. A56809